ALIGN TECHNOLOGY INC — Director's Dealing 2013

Feb 22, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALIGN TECHNOLOGY INC (ALGN)
CIK: 0001097149
Period of Report: 2013-02-20

Reporting Person: Mack Timothy A (SVP, Mktg & Bus. Dev.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-20	Common Stock	C	2000	$0.00	Acquired	10377	Direct
2013-02-20	Common Stock	F	695	$31.73	Disposed	9682	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-20	Restricted Stock Unit	$0.0001	C	2000	Disposed		Common Stock (2000)	Direct
2013-02-20	Restricted Stock Unit	$0.0001	A	25650	Acquired		Common Stock (25650)	Direct
2013-02-20	Market Stock Unit	$0.0001	A	38475	Acquired		Common Stock (38475)	Direct

Footnotes

F1: Includes 939 shares issued on July 31, 2012 and 1,129 shares issued on January 31, 2013 under the ALGN ESPP.

F2: Represents par value of ALGN common stock.

F3: 1/4th of the restricted stock unit granted on February 20, 2012 became vested on February 20, 2013and shares were delivered to reporting person on that date. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

F4: 1/4th of the restricted stock unit will become vested on February 20, 2014 and 1/4th of the restricted stock unit will vest annually thereafter. Shares will be delivered to reporting person on each vest date.

F5: Represents the maximum number of shares which may be issued under the market stock unit. All of the shares which may be issued under the market stock unit will vest on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).